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Old 28 July 2019, 11:46   #421
kulamario
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Welcome
I have NEC FD1231M but dnt know how to do modification for Amiga
i have different PCB like on German page
https://drive.google.com/file/d/11hr...ew?usp=sharing
Anybody can help me please
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Old 28 July 2019, 20:17   #422
katarakt
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NEC FD1231M looks similar to FD1231H. FD1231H are more than 2 PCB layouts available. This drive on your picture can only hacked with fake-ready (diode) between pin 30 and 34. Cut 2 traces and solder 2 wires on the controller ic. If you want to do this, i can go into detail. But i recommend choosing an other drive with real ready and no motor power-save function.
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Old 28 July 2019, 22:10   #423
kulamario
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Can u show on picture what to do and how install diode please
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Old 30 July 2019, 23:59   #424
kulamario
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Anybody can help me with this drive? please
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Old 17 September 2019, 21:58   #425
katarakt
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Sorry forgot to reply, i will send pictures at the weekend...reply here if i forget again.I'm very busy.
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Old 22 September 2019, 17:56   #426
katarakt
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Here is the how-to for NEC FD1231H as internal drive with diode fake-ready hack:

Cut the traces from Pin 34 + 12, add diode and wires as you can see in detail on the pictures attached.
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Old 07 November 2019, 13:08   #427
Portello
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Some problem

Quote:
Originally Posted by paulo_becas View Post
I've just noticed a big problem with the Samsung drives.
They aren't able to write a floppy.
I've tried with all the samsung drives i could find and they all have the same problem.
I can format disks without a problem but when i tried to copy some floppys they become unreadable.
Does anyone experienced the same problem???
I've tried to copy with X-copy and with Amiga Explorer through my PC and the result is the same.
The floppy's are ok, i've formatted them after trying to write them with this drives and made a copy with my PC catweasel MK4 and they work fine, so the problem is with this floppy drives.

If anyone experienced this problem and fix it please tell me how.
hello, I found your same problem, did you find a solution? can you help me please?
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Old 07 November 2019, 22:18   #428
katarakt
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The problem might be that these drives have a so called "power save" mode. Simple test: format a disk in workbench. Open shell and read the directory from the formated drive. Result is the disk is, at most, not readable. Maybe the Problem is the same with xcopy...i haven't tried this.
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Old 21 February 2020, 18:58   #429
Wrangler
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PC HD floppy

I found what looked like a regular Sony MPF920-C in some stuff I bought recently, but on opening it up, I found it has been heavily modded. Putting into my A4000T shows that this PC drive can read and write HD floppies at half-speed. Might be interesting for anyone wanting to mod a similar drive themselves.
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Old 22 February 2020, 23:29   #430
Marty_McFly
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Hi,
Just today I posted a request for opinions about Samsung drives modified for Amiga use.
This the link to my post in other section, sorry for my mistake in opening a new topic.

https://eab.abime.net/showthread.php...91#post1380791

Any experiences?
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